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Seamless pipe

A seamless pipe is a type of steel pipe that is manufactured from a solid steel billet or tube without any seams or joints.

Cutting method of large diameter seamless steel pipe

Large-diameter seamless steel pipes are seamless steel pipes with an outer diameter of more than 1000mm.

Quenching production process of Q345B seamless pipe

The improvement of the heat treatment method of Q345B ms seamless pipe is accompanied by the increase of the quenching temperature, and the quenching strength is gradually increased.

What are the basic processes for producing seamless steel pipes?

To roll a solid tube blank into a hollow finished steel tube, no matter what method of perforation and tube rolling is used

Polishing method of seamless steel pipe

There are two main polishing techniques, one is chemical polishing and the other is electrolytic polishing.

Classification of quality defects of seamless steel pipes

Serious defects of seamless steel pipes: cracks, internal folds, external folds, rolling, delamination, scarring, concave, convex hulls, etc.

Four non-destructive testing methods for seamless steel pipes

Non-destructive testing is a method of non-destructive inspection of materials, workpieces or components, and its main purpose is to find discontinuous

Infolding of hot rolled seamless steel pipes

Infolding is the main quality defect in the production of hot rolled seamless steel pipe, which is produced in the perforation process and cannot be eliminated.